Уравнение. 8*(3m-2)-13=5*(12+3m)+28
8*(3m-2)-13=5*(12+3m)+28
24m - 16 - 13 = 60 + 15m + 28
24m - 15m = 16 + 13 + 60 + 28
9m = 117
m = 117 / 9
m = 13